Method for manufacturing an electrode

Abstract

Disclosed is a method to manufacture an electrode. The metal oxide of different sizes (or metal oxide secondary particle of similar size) is formed on a transparent substrate by electrophoresis deposition. Subsequently, the metal oxide layer is compressed and dipped in dye to complete an electrode applied in a solar cell. Furthermore, the step of dipping the metal oxide in dye can be earlier than the electrophoresis deposition, thereby reducing the dipping period and dipping temperature.

1. A method for manufacturing an electrode, comprising:
 providing a transparent substrate having a transparent conductive layer thereon; 
 electrophoresis depositing a first metal oxide on the transparent conductive layer; 
 electrophoresis depositing a second metal oxide on the first metal oxide; and 
 performing a compressing process after electrophoresis depositing the first metal oxide and/or electrophoresis depositing the second metal oxide, 
 wherein the first metal oxide has a smaller particle size diameter than the second metal oxide. 
 
     
     
       2. The method as claimed in  claim 1 , wherein the transparent substrate comprises glass, plastic, or synthetic resin. 
     
     
       3. The method as claimed in  claim 1 , wherein the transparent conductive layer comprises indium tin oxide, zinc oxide, fluorinated tin oxide, aluminum zinc oxide, zinc gallium oxide, or combinations thereof. 
     
     
       4. The method as claimed in  claim 1 , wherein the steps of electrophoresis depositing the first and second metal oxide are processed in constant current. 
     
     
       5. The method as claimed in  claim 1 , wherein the first metal oxide has a particle size diameter of 5 nm to 50 nm, and the second metal oxide has a particle size diameter of 50 nm to 200 nm. 
     
     
       6. The method as claimed in  claim 1 , wherein the first and second metal oxides comprise titanium oxide, zinc oxide, or indium tin oxide. 
     
     
       7. The method as claimed in  claim 1 , further dipping the first and second metal oxides in a dye solution, respectively, to form a dye layer on the first and second metal oxides, respectively, before electrophoresis depositing the first and second metal oxides. 
     
     
       8. The method as claimed in  claim 1 , further dipping the first and second metal oxides in a dye solution after electrophoresis depositing the second metal oxide. 
     
     
       9. The method as claimed in  claim 1 , wherein the electrode is applied in a dye sensitized solar cell. 
     
     
       10. A method for manufacturing an electrode, comprising:
 providing a transparent substrate having a transparent conductive layer thereon; 
 electrophoresis depositing a first metal oxide secondary particle on the transparent conductive layer; and 
 performing a compressing process after electrophoresis depositing the first metal oxide secondary particle. 
 
     
     
       11. The method as claimed in  claim 10 , wherein the transparent substrate comprises glass, plastic, or synthetic resin. 
     
     
       12. The method as claimed in  claim 10 , wherein the transparent conductive layer comprises indium tin oxide, zinc oxide, fluorinated tin oxide, aluminum zinc oxide, zinc gallium oxide, or combinations thereof. 
     
     
       13. The method as claimed in  claim 10 , wherein the step of electrophoresis depositing the first metal oxide secondary particle is processed in constant current. 
     
     
       14. The method as claimed in  claim 10 , wherein the first metal oxide has a particle size diameter of 10 nm to 20 nm, and the secondary particle has a particle size diameter of 100 nm to 400 nm. 
     
     
       15. The method as claimed in  claim 10 , wherein the first metal oxide comprises titanium oxide, zinc oxide, or indium tin oxide. 
     
     
       16. The method as claimed in  claim 10 , further dipping the first metal oxide secondary particle in a dye solution to form a dye layer on the first metal oxide secondary particle before electrophoresis depositing the first metal oxide secondary particle. 
     
     
       17. The method as claimed in  claim 10 , further dipping the first metal oxide secondary particle in a dye solution after electrophoresis depositing the first metal oxide secondary particle. 
     
     
       18. The method as claimed in  claim 10 , wherein the electrode is applied in a dye sensitized solar cell.